Method and Device for Transmitting or Receiving Data in Wireless Communication System

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a base station, ServingCellConfig including at least one of configuration information of an uplink (UL) or configuration information of a supplementary UL (SUL); receiving, from the base station, downlink control information (DCI) format 0_1 for a physical UL shared channel (PUSCH), wherein a UL/SUL indicator in the DCI format 0_1 is 0 bit, in case that the UE is configured with the SUL without the UL; and transmitting, to the base station, the PUSCH on the SUL based on the UL/SUL indicator being 0 bit in the DCI format 0_1.

2. The method of claim 1, wherein the UL and the SUL associated with the DCI format 0_1 are included in one cell.

3. The method of claim 1, further comprising: receiving random access channel (RACH) configuration including a threshold for selection of the SUL; measuring reference signal received power (RSRP); and selecting the SUL for a random access, in case that the measured RSRP is less than the threshold.

4. A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and at least one processor coupled with the transceiver, the at least one processor is configured to: receive from a base station, ServingCellConfig including at least one of configuration information of an uplink (UL) or configuration information of a supplementary UL (SUL), receive from the base station, downlink control information (DCI) format 0_1 for a physical UL shared channel (PUSCH), wherein a UL/SUL indicator in the DCI format 0_1 is 0 bit, in case that the UE is configured with the SUL without the UL, and transmit to the base station the PUSCH on the SUL based on the UL/SUL indicator being 0 bit in the DCI format 0_1.

5. The UE of claim 4, wherein the UL and the SUL associated with the DCI format 0_1 are included in one cell.

6. The UE of claim 4, wherein the at least one processor is configured to: receive random access channel (RACH) configuration including a threshold for selection of the SUL, measure reference signal received power (RSRP), and select the SUL for a random access, in case that the measured RSRP is less than the threshold.

7. A method performed by a base station in a wireless communication system, the method comprising: transmitting, to a user equipment (UE), ServingCellConfig including at least one of configuration information of an uplink (UL) or configuration information of a supplementary UL (SUL); transmitting, to the UE, downlink control information (DCI) format 0_1 for a physical UL shared channel (PUSCH), wherein a UL/SUL indicator in the DCI format 0_1 is 0 bit, in case that the UE is configured with the SUL without the UL; and receiving, from the UE, the PUSCH on the SUL based on the UL/SUL indicator being 0 bit in the DCI format 0_1.

8. The method of claim 7, wherein the UL and the SUL associated with the DCI format 0_1 are included in one cell.

9. The method of claim 7, further comprising transmitting random access channel (RACH) configuration including a threshold for selection of the SUL.

10. A base station in a wireless communication system, the base station comprising: a transceiver; and at least one processor coupled with the transceiver, the at least one processor is configured to: transmit to a user equipment (UE), ServingCellConfig including at least one of configuration information of an uplink (UL) or configuration information of a supplementary UL (SUL), receive from the base station, downlink control information (DCI) format 0_1 for a physical UL shared channel (PUSCH), wherein a UL/SUL indicator in the DCI format 0_1 is 0 bit, in case that the UE is configured with the SUL without the UL, and transmit to the base station the PUSCH on the SUL based on the UL/SUL indicator being 0 bit in the DCI format 0_1.

11. The base station of claim 10, wherein the UL and the SUL associated with the DCI format 0_1 are included in one cell.

12. The base station of claim 10, wherein the at least one processor is configured to transmit random access channel (RACH) configuration including a threshold for selection of the SUL.